Reaction spraying mechanism for dishwashing machines



F. D. CLINTON.

REACTION SPRAYING MECHANISM FOR DISHWASHING MACHINES.

APPLICATION FILED JAN-17, 1921.

1,408,077. atented Feb. 28, 1922.

2 SHEETS-SHEET l- F. D. CLINTON. REACTIONSPRAYING MECHANISM FORDISHWASHING MACHINES.

APPLICATION FILED JAN. 17, I921- Patented Feb 2 SHEETS-SHEET 2.

NM QM N UNITED STATES PATENT OFFICE.

FREDERICK D. CLINTON, OF MILWAUKEE, WISCONSIN.

Specification of Letters Patent. Patented F b. 28 1922 Application filedJanuary 17, 1921. Serial No. 437,665.

To all whom it may concern:

' Be it known that I, FREDERICK D. CLIN- TON, a citizen of the UnitedStates, and resident of Milwaukee, in the county of M11- waukee andState of Wisconsin, have 1nvented certain new and useful Improvements inReaction Spraying Mechanisms for Dishwashing Machines, of which thefollowing is a specification.

This invention relates to multiple reaction spraying mechanisms fordish-washing machines, and its object is to provide a mechanism whereofthe spraying members are of such character that cleansing fluid isdistributed under pressure at various angles toward and against therespectlve sides of the articles to be cleansed, thereby ensuring athorough and effective cleansing operation.

A feature ofthe invention consists in the provision of means whereby oneof the spraying members is automatically oscil-- lated and the-othermember is continuously rotated by the reaction of the water flowingthrough the said members under pressure; and another feature of theinvention consists in the provision of means whereby the continuouslyrotating member is periodically tilted during its travel.

In the form of embodiment of my invention herein illustrated thespraying mechanism comprises a main spraying member mounted forhorizontal oscillation and having oppositely related reaction ports atone end, a secondary or planetary spraying member rotatably mounted on'and in communication with the opposite end of said main member, meanswhereby liquid under pressure is supplied to the main member and therebydelivered to the planetary memher for discharge therefrom in a manner torotate the latter member, and valve means whereby the ports of the mainmember are closed and opened at successive intervals to efl'ect'throughthe alternate reaction of the water escaping through the ports thebodily oscillation of the main member concurrently with the continuousrotation of the planetary member. This. planetary member is tiltablymounted 'on the main member and; connections are providedwhereby'theformer member is bodily tilted as the main member approaches and reachesthe end of each stroke, and whereby rlso the valve means for controllingthe reaction ports of the main member are actuated to effect a reversalof the direction of travel of the latter member.

The invention also comprises various novel features of construction andcombinations of parts which will be hereinafter described and claimed.

In the, drawings- Figure l is a vertical section of a dishwashingmachine equipped with spraying mechanism embodying my invention.

Fig. 2 is a horizontal section of the machine, as on the line 2--2 ofFig. 1.

Fig. 3 is a vertical section, partly in elevation, of the sprayingmechanism, and adjuncts. I

Fig. 4 is a vertical section through the structure, as on the line 4-4of Fig. 3, showing different angular positions of the planetary sprayingmember. 1

Fig. 5 is a transverse section through the oscillatory tubular memberand its valve, as on the line 5-5 of Fig. 3, the valve being shown inposition to open the-left hand reaction port of said member.

Fig. 6 is a similar section showing the valve in the reverse position. v

Fig. 7 is a perspective view of the planetary spraying member and itstappetactuated elbow, together with the valve and its connection withthe elbow.

Referring to the drawings, 10 and 11 designate lower and upper casingsections removably connected in order that access can be readily had tothe interior of the casing, as occasion may require. The lower sectionof the casing is provided on its inner side with brackets 12 which notonly afford a support for the lower edge of the upper section whenthecasing is closed, but also furnish a support for a removable dishrack 13 upon which the dishes to be washed can be spaced apart.

" 'Within the casing are two rotary horizontally-disposed sprayingmembers. 14,15,

the former being mounted to oscillate about a vertical axis centrally ofthe casing, and the latter member beingmounted to turn continuously-on avariable angular axisat one end of the oscillatory member. Thesespraying members are relativel operated about theirrespective axes by te reaction of water escaping from the members under pressure, whichwater is supplied to the spraying member 14 from a suitable source ofsup 1y. The jets of water discharged from t e spraying members forcibly1m led pings against the respective surfaces of the ishes at varyingangles and ensure a thorough cleansing operation, as will hereinafterappear.

In the particular construction illustrated the bottom 16 of the casingis provided with a central stand pipe 17, the lower end of which isconnected by means of an elbow 18 with an inlet pipe 19. Rotatablycoupled to the upper portion of the stand pipe is the spraying member14, which, in its preferred form, comprises two pipe sections 20, 21 ofdiflerent lengths connected at their adjacent ends by a T-fitting 22from which depends into the pipe 17 a tubular nipple 23 having fastthereon upper and lower coupling collars 24, 25 which take against therespective ends of an interposed bearing collar 26 fast on the innerwall of the pipe 19. The nipple is thus freely rotatable within the pipe17. The section 20, which is shorter than the section 21, is provided atits outer end with an upturned elbow 27, the horizontal branch of which,in the pres-- ent case, is equipped with a. coupling nipple 28 havingits projecting portion journaled within the adjacent end of the section20. Fast on the upper end of the elbow 27 is a coupling nipple 29 withinwhich is rotatably supported the depending branch 30 of the sprayingmember 15. The horizontal limbs of this member are provided at theirouter ends with upwardly-inclined nozzles 31 through which jets of waterare discharged and directed thence against the dishes supported by therack. The nozzles are oppositely-disposed in relation to each other asshown, and hence the reaction of the water flowing therefrom rotates thespraying member 15 rapidly about its axis in the elbow 27.

The outer end of the pipe section 21 is closed by means of a cap 32 andis provided with oppositely-related upwardly and outwardly inclinedreaction ports 33, 34 under the control of a rotatable annular valve 35on said section. This valve is provided on its respective sides withupwardly and out wardly extending ports 36, 37 which are adapted toregister in alternate succession with the ports 33, 34 when the valve isproperly turned on the pipe section; that 1s to say, when the valve isturned to the left (Fig. 5) the left hand port 36 of the valve registerswith the adjacent port 33 of the pipe section 21 and the other ports 34,37 are out of register, and when the valve is again turned to the right(Fig. 6) the right hand port 37 of the valve registers with the adjacentport 34 of the pipe section 21 and the other ports 33, 36 are out ofregister.

Depending upon the position of the valve 35 and the particular port 33or 34 of the pipe section 21 which 1s open, the reaction of the jet ofwater escaping through the open port bodily rotates the spraying member14 about its vertical axis to the right or to the left. Hence byperiodically shifting the valve at or about the end of each rotation ofthe spraying member 14, the direction of movement of the said sprayingmember is positively reversed; thus effecting the bodily oscillation ofthe member 14 while the member 15 thereon rotates continuously in onedirection about its own axis of rotation on the elbow 27. The jetsalternately discharged from the ports 33,34 not only effect theoscillation of the spraying member 14 but they also during such motionimpinge against and contribute to the washing of the dishes on the rack.

As a simple and efficient means to shift the valve 35 automatically andpositively at or about the end of each stroke of the spraying member 14,I connect the valve 35 to the elbow 27 by means of a rod 38 whichextends above and parallel with the member 14, and I provide the saidelbow with a tappet arm 39 which depends near to the bottom 16 of thecasing. Suitably disposed on this bottom, in the path of the free lowerend of the arm, is an upstanding stop 40 against which the arm forciblyimpinges as the spraying member 14 approaches the end of its path ofrotation, said arm, together with the elbow, thus being positivelytilted to the right or to the left according to the direction ofmovement of the spraying member 14, and thus, through the rod 38,shifting the valve to a reverse position. Fast on the member 14,adjacent the elbow 27, is a collar 41 having a peripheral recess throughwhich the rod extends. The ends of the recess provide spaced stops 42which limit the lateral movement of the rod, and perforce the valve, tothe right or left as the case may be.

The tilting of the elbow 27 as above described bodily cants thecontinuously revolving spraying member 15 in opposite angular directionsduring the oscillation of the spraying member 14 as seen in Fig. 4, and,in consequence, the jets from the spray ing member 15 are alternatelydirected against opposite sides of the dishes and at varying effectiveangles, which operation in conjunction with that of the upwardlydirectedjets from the ports of the oscillating sprayin member, ensures a mostthorough cleanslng of the surfaces of the dishes su ported on the rack.

The bottom 16 of the casing is preferably inclined as shown, and adischarge pipe 43 is provided at its lowest edge to drain the water fromthe casing.

A soap receptacle 44, similar in construction to a compression greasecup, may be connected to the inlet pipe 19 so as to provide a supplyofsoap to the cleansing water flowing under pressure to the reactionspraying members within the casing.

It is to be understood that I do not limit my invention to theparticular construction herein disclosed to exemplify the principle ofmy invention, as the mechanism may be modified within the scope of theappended claims.

I claim- 1. In multiple reaction spraying mechanism for dishwashingmachines,'a horizontally-disposed tubular member having a vertical axisof oscillation between its ends, one of the limbs of said member havingtwo reaction ports opening upwardly in diverging planes, a sprayingmember in communication with and mounted for rotation on a vertical axison the other limb of said member, means whereby liquid, under pressure,is supplied to said tubular member through its axis of oscillation, andmeans, including a valve, whereby the said ports are closed and openedin alternate succession to effect the bodily oscillation of the saidtubular member and also to direct in upwardly diverging paths the liquiddischarge from the respective ports.

2. In multiple reaction spraying'mechanism for dishwashing machines, anoscillatory member having oppositely-related reaction ports, a sprayingmember carried by and independently rotatable on said oscillatorymember, means for supplying water under pressure to said members, meanswhereby the said ports are closed and opened in alternate success-ion toeffect the bodily oscillation of the said oscillatory member, and meanswhereby the said spraying member is bodily tilted at predeterminedintervals.

3. In multiple reaction spraying mecha-. nism. for dishwashing machines,an oscillatory member, a spraying member carried by and independentlyrotatable on said oscillatory member, means for supplying water underpressure to said members, means whereby bodily oscillation of theoscillatory member is effected, and means whereby the said sprayingmember is bodily tilted on its axis at predetermined intervals.

4. In multiple reaction spraying mechanism for dishwashing machines, anoscillatory member having oppositely-related reaction ports, a valve forcontrolling said ports, a spraying member carried by and independentlyrotatable on said oscillatory member, means for supplying water underpressure to said members, means whereby said spraying member is bodilytilted while rotating, and connections whereby the tilting of thespraying member effects the shifting of the said valve in relation tothe reaction ports.

5. In multiple reaction spraying mechanism for dishwashing machines, anoscillatory tubular member having oppositelyrelated reaction portstherein, an elbow having one limb thereof rotatably mounted on saidmember, a spraying member rotatably mounted on the other limb of theelbow, a valve for opening and closing the said reaction ports, aconnection between said valve and the elbow, a tappet member on theelbow, and an abutment arranged in the path of said tappet member.

6. In multiple reaction spraying mechanism for dishwashing machines, anoscillatory tubular member having oppositelyrelated reaction ports atone end thereof, an elbow having one limb thereof rotatably mounted onthe opposite end of said member, a spraying member rotatably mounted onthe other limb of the elbow, a rotary valve having twooppositely-related ports and mounted on the tubular member in operativerelation to the reaction ports of the latter, a rod connecting the saidvalve wlth the elbow, a tappet arm depending from v the elbow, and anabutment arranged in the path of the said arm.

Signed at Milwaukee, in the county of Milwaukee andState of Wisconsin,this 13th day of January, A. D. 1921.

FREDERICK D. CLINTON.

